Media converter with integrated local information transmission function and fault alarm signal transmission system

a local information transmission and media converter technology, applied in the direction of transmission monitoring, frequency-division multiplex, instruments, etc., can solve the problems of complex management, complicated device structure, and difficult structure to simplify, so as to simplify fault diagnosis and simplify circuit conservation
US7170859B2Inactive Publication Date: 2007-01-30THE FUJIKURA CABLE WORKS LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
THE FUJIKURA CABLE WORKS LTD
Publication Date
2007-01-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

There is provided media converter having an integrated local information transmission function and a fault alarm signal communication system for transmitting local information using a frequency outside the communication frequency bands for data signals. In the subscriber's media converter, based on input local information, a control section sets a transmission frequency outside the communication frequency bands and outputs a signal instructing that a transmission be made. A media independent interface section receives this signal and transmits the signal in the instructed frequency. In the station media converter, a media independent interface section detects the frequency in which the local information is transmitted from the received signal. A control section then generates local information using the detected frequency and outputs it to an SNMP unit.
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Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a media converter having an integrated local information transmission function and a fault alarm signal transmission system that enable the transmission of local information with matching media converters to be performed by using a frequency outside the data signal communication frequency band or by controlling the sending of transmission error signals.

[0003] 2. Description of the Related Art

[0004] A media converter converts an Ethernet signal in 10 BASE-T or 100 BASE-TX formats, which are IEEE (Institute of Electrical and Electronics Engineers) 802.3 standards, that use twist pair cable into a signal that corresponds to a 100 BASE-FX format Ethernet that uses optical fiber. In many cases, a media converter is installed at both the subscriber's premises and the station premises and these are used by being matched to each other via a local area network (referred to below as a LAN). In a cas...

Claims

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